Baseboard radiators



Sept. 8, 1959 R. w. KRITZER BASEBOARD RADIATORS 2 Sheets-Sheet 1 FiledDec. 20, 1957 INVENTOR. ,Za/Mrrl if 2% Sept. 8, 1959 R. w. KRITZERBASEBOARD RADIATORS 2 Sheets-Sheet 2 Filed Dec. 20, 1957 T fa BYizziflfiorlgg.

Zzchzrd 71 A nited States Patent 'BKSEB'OARD 7 Richard W. Kritzr,Chicago, Ill. Application December 20, 1957, seas! No. 704,072

2 Claims. (Cl. 257- 133) The invention relates to radiators of thebaseboard type which are adapted to extend along a floor and back-wallof a room for heat-transfer into the surrounding room.

One object of the invention is to provide a radiator of this type whichis simple in construction, efiicient in heat conduction and can beeconomically fabricated.

Other objects will appear from the detail description.

The invention consists in the several novel features which arehereinafter set forth and are more particularly defined by claims at theconclusion hereof.

In the drawings:

Fig. 1 is a vertical longitudinal section of a radiator embodying theinvention, one fin-structure being shown in elevation;

Fig. 2 is a fragmentary front elevational View of a portion of thestructure shown in Fig. 1;

Fig. 3 is an end elevational view of the structure shown in Fig. 1;

Fig. 4 is a sectional view taken substantially along the line 4-4 ofFig. 1; and

Fig. 5 is a perspective view of a portion of a fin structure employed inconnection with the invention.

The invention is exemplified in a sheet-metal casing, generallydesignated 10, and adapted to extend along the back-wall .11 and thefloor 12 of a room or enclosure to be heated. The casing comprises afront-wall 13 and a top-Wall 14 which extend longitudinally of wall 11,and end walls 15. Casing is removably secured against back-wall 11 bystrips 16 (Fig. 4) which are fixed to the room-structure and areprovided at their upper ends with clips 17 for engaging a downturnedback-flange 18 on the rear of top-wall 14 and at their lower ends witharms having clips 19 for engaging a rearwardly extending flange 20 onthe lower end of the front-wall 13. Endwalls are provided with slots 24which form inlets for air into the casing.

A pipe or conduit 25 for circulating a heating fluid, such as steam orhot water, from a suitable source (not shown) extends longitudinallythrough the lower portion of the casing and through end-walls 15. Heads26 serve to support the pipe 25 in the end walls 15. A pair of finstructures, generally designated at 28, are secured on pipe 25 andextend between a point adjacent end-walls 15 and a space adjacent thelongitudinal center of casing 10 for conducting heat from the fluidcirculating through pipe 25 to air passing from inlets 15 longitudinallyof and to the center of the casing 10. Each structure 28 includes aseries of transverse fins serially connected alternately by integralfront and rear end-walls. Each fin includes a planar transverse face orbody 29 of rectangular contour, front and rear connecting end-walls 30and 31 between adjacent fins, and an opening surrounded by an annularflange 32 fitting around and coaxial with pipe 25. Each fin extendsabove and below pipe 25 and is provided above and below said pipe with acentral vertical slot 34 having integral angular flanges 35 extendinglongitudinally of casing 10 and slots 36 in front and back of slots 34.The slots 34 and 36 in each fin-structure are longitudinally 2,903,245Patented Sept. 8, .1959

ICC

2 aligned for the flow of air from inlets 24 towards the longitudinalcenter of the casing and in contact with the fins. I

V A pair of air-impellers 50 are mounted at't-he longitu dinal center ofthe casing 10 and are driven by an electric motor 51. Each impeller isprovided with a casing 53 having an outwardly facing intake 52 adjacenttheinnerend of one fin-structure, a propeller-wheel 54, and a 'dis'charge trunk 55 leading from theycasing 53 to a register valve-56 whichis .pivotedin a .plate 57 secured to the front-wall 13 of the casing fordischarging heated air under pressure from casing 53 through the frontof the casing into the surrounding room. Each plate 57 has a sleeve 58in which trunk 55 is slidably and telescopically fitted to permitremoval of the casing 10 from the backwall 11 for access to thestationary parts in casing 10.

The casing 10 and pipe 25 may be of any desired length according to theavailable space along the base of the back-wall and the desired heatingcapacity. A recess 60 is formed on the back-wall 11 to accommodate theimpeller casings 53.

The operation will be as follows: assuming a heating fluid, such as hotwater or steam, is circulating through the pipe 25 and motor 51 isdriven, the impellers 50 will draw air through inlet slots 24 in theend-walls 15 and inwardly longitudinally of the casing 10 toward theoutwardly facing intakes 52 of impeller casings 53. In transit to saidintakes, the air will successively contact the fins of structures 28 andbe drawn through the aligned slots 37 and 38 into impeller casings 53for transferring heat from pipe 25 to the air flowing longitudinally inthe casings 53. The propeller-wheels 54 will discharge the air underpressure through the trunks 55 under control of valves 56 to the outsideof the casing and into the surrounding room.

The invention is not to be restricted to the details set forth sincethese may be modified Within the scope of the appended claims withoutdeparting from the spirit and scope of the invention.

Having thus described my invention what I claim as new and desire tosecure by Letters Patent is:

1. A baseboard radiator adapted to extend along the juncture between afloor and Wall structure, said radiator comprising in combination anelongated casing including front and rear walls respectively, top andbottom walls respectively, and end walls closing the opposite ends ofthe casing, a fluid conduit in the form of a cylindrical tube extendinglongitudinally through said end Walls and the interior of the casing andadapted to communicate with a source of heating fluid, there being airinlet openings above and below the level of said conduit in said endwalls, a twin-blower assembly disposed within the casing medially of itsends above the level of said conduit and overlying the latter, saidtwin-blower assembly ineluding longitudinally spaced impellers havingaxially aligned air inlets facing outwardly in opposite directions andfacing said end walls respectively, an electric motor disposed betweensaid impellers and operatively connected thereto in common for drivingthe same, said impellers having radial air discharge outlets facing saidfront wall, there being a pair of air outlet openings in said front wallin sealed communication with said air discharge outlets respectively,and a series of closely spaced fins mounted on said conduit on each sideof said twin-blower assembly and in heat-conducting relationship to theconduit, the various fins of each series extending transversely of thecasing and radially of the conduit and presenting transverse surfaceareas conforming substantially to the crosssectional configuration ofthe casing whereby the flow of air longitudinally through the casinginwardly thereof from the inlet openings around at least the bottom andside edges of the fins is substantially restricted, there being a seriesof transversely spaced slots in each fin of each series of fins abovethe conduit and a series of transversely spaced slots in each fin ofeach series below said conduit, the height of the slots which are abovethe conduit being at least as great as the height of the blower airinlets, all of the slots above the conduit being in longitudinalregister with one of the blower air inlets whereby air entering each airinlet opening in an end wall may pass directly and successively throughthe slots of one series of fins and enter one of the impeller airinlets, the corresponding slots of each series of fins below saidconduit being in longitudinal alignment.

2. A baseboard radiator as set forth in claim 1 wherein there are threetransversely spaced slots in each fin of each 4 series of fins above thelevel of said conduit including a relatively wide medial slot and arelatively narrow slot on each side thereof, and including,additionally, longitudinally extending vertically disposed side flangesprojecting laterally from each fin along the side edges of each medialslot.

References Cited in the file of this patent UNITED STATES PATENTS1,983,549 Krackowizer Dec. 11, 1934 2,063,736 Hardiman et al Dec. 8,1936 2,503,667 Hagen Apr. 11, 1950

